C# .NET Integration With DLL

TestFont is a C# (.NET 2) project that demonstrates the integration of the ConnectCode DLL with  C# . The source code for TestFont is provided in the download below and requires Visual Studio 2005 or later to compile. For the barcodes to be properly displayed, the trial version of ConnectCode Barcode Font Pack has to be installed .

The following is a screenshot of the sample in Vista.


Download the TestFont.zip executable and source code.

The ConnectCode Barcode Fonts DLL and the source for the TestFont sample are free to use and can be compiled and distributed with users' applications as long as they are being used with any one of the registered barcode font packs. Redistribution of ConnectCode's fonts will, however, require a Distribution or Unlimited Distribution License.

Steps for integrating the DLL into your C# (.NET 2)  project

1) Make sure the namespace System.Runtime.InteropServices is imported into your project

Using System.Runtime.InteropServices;

2) Copy the DLLImport statements for connectcodefont.dll into your project.

3) Make calls to the DLL to encode the input data. For example

String inputstr;
StringBuilder outputstr = new StringBuilder(2048);
inputstr = "12345678";
Encode_Code39(inputstr, 0, outputstr, outputstr.Capacity);

The result will be stored in the outputstr variable. 

4) Set the font of  outputstr to the appropriate barcode font. For example, if you are using Encode_Code39, then the font to choose should be CCode39_S3. (If you are developing with the Trial version of ConnectCode Font Pack, the font to choose would be CCCode39_S3_Trial instead)

The TestFont sample includes all the above steps in a short and easy to understand program.

Note that the barcodes generated with the Trial version of ConnectCode Font Pack will have horizontal lines across them.